1238908198 has 16 divisors (see below), whose sum is σ = 2028998160. Its totient is φ = 562669600.

The previous prime is 1238908183. The next prime is 1238908247. The reversal of 1238908198 is 8918098321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4128 + ... + 49948.

It is an arithmetic number, because the mean of its divisors is an integer number (126812385).

Almost surely, 2^1238908198 is an apocalyptic number.

1238908198 is a deficient number, since it is larger than the sum of its proper divisors (790089962).

1238908198 is a wasteful number, since it uses less digits than its factorization.

1238908198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47063.

The product of its (nonzero) digits is 248832, while the sum is 49.

The square root of 1238908198 is about 35198.1277627092. The cubic root of 1238908198 is about 1074.0216656690.

The spelling of 1238908198 in words is "one billion, two hundred thirty-eight million, nine hundred eight thousand, one hundred ninety-eight".